Welcome to Chem Zipper.com......: What is Arrhenius equation ?

## Saturday, June 27, 2020

### What is Arrhenius equation ?

The temperature dependence of rate of a chemical reaction can be accurately explained by Arrhenius equation. It was first proposed by Dutch chemist   J.H. Vant’s Hoff but Swedish chemist Arrhenius provides its physical justification and interpretation.

Where

K= Rate constant

A= Arrhenius constant or frequency factor or pre exponential factor

R= Universal gas constant =25/3 joule per mole per second

Ea= Activation Energy

T= temperature

-Ea/RT= Boltzmann factor or fraction of molecule having equal or greater than Activation energy or fraction of molecule that have kinetic energy greater than activation energy.

Related Questions:

### (8) The rate of a reaction triple when temperature changes from 20”C to 50”C. Calculate energy of activation for the reaction (R = 8.314 JK^1 mol^1).

#### 1 comment:

1. ## Featured Post

### Salicylic acid is a stronger acid than Benzoic acid. Why?

Salicylic acid is a stronger acid than benzoic acid. It is due to the fact that in salicylate ion (conjugate base of salicylic acid) intram...